Telephone system



April 1959 R. B. TROUSDALE 2,882,341

TELEPHONE SYSTEM 35 Sheets-Sheet 1 Filed July 28, 1952 e R m w y N s e m M m QM mT w. mm xi 5 w Z fix vm E v 1M J um ww E W V @L i AMEQ -23 i- WMM my GL wkmk Nbkkh XHU 0 3 E83 Q $5 #255 l b Hg 35 954 M2 N. o. r fima 3. mg .0 5m :Nw If |l S NM. i. 8 N

' April 1959 v R. B. TROUSDALE 2,882,341

TELEPHONE SYSTEM Filed July 28, 1952 35 Sheets-Sheet 2 Unifs Pz zlses mugs FY1505 Units I Pu lscs CON/V- F/ N 732 F670? 72%.; /3 b Pulses I 77915 Hzlses '"EZZZ-es Misc 01/? Uniis rz Pulses CONN- ECTO/x 72 b F/A/DER [2 Q Tens Pulses INVENTOR. 52b Babe/i 5 Fausdale 52a, BY

April 1959 R. B. TROUSDALE 2,882,341

TELEPHONE SYSTEM Filed July 28, 1952 55 Sheets-Sheet 4 Tens 79/25 Texas llguerier isier 71727172 I Czrcuz'i 23/ Pulsar (fmai lllziz s i P6 1550 77mm @5531 P11 138 M3,;

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INVENTOR. Poberi fifi'ozzs'dalc "Uzw R. B. TROUSDALE 2,882,341

TELEPHONE SYSTEM April 14, 1959 35 sheet -sheet 6 Filed July 28, 1952 R Q Em m \tbbqsv NE;

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TELEPHONE SYSTEM Filed July 28, 1952 as Sheets-sheaf, 8

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R. B. TROUSDALE April 14, 1959 TELEPHONE SYSTEM Filed July 28, 1952 35 SheetS-She'ei 1s jay/0 April 14, 1959 R. B. TROUSDALE TELEPHONE SYSTEM Filed July 28, 1952 35 Sheets-Sheet 15 Conucrsaiz'orz WWI/g Pulse Gaze/afar -57 AAAA INVENTOR. Haber-i B Tiousda'le.

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TELEPHONE SYSTEM l Filed July 28, 1952 I as Sheets-Sheet 1e Z, [5 B06053, Wousda zi April 1959 R. B. TROUSDALE '2',882,341

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TELEPHONE SYSTEM Filed July 28, 1952 s5 Sheets-Sheet 1s To Link C'ou Tom:

f7! Busy Tune 'erzel'afor 29 we y INVENTOR. ,Poberi 5i W'oqsdal:

April 1959 R. BQZTROUSDALE 7 2,882,341

TELEPHONE SYSTEM Filed July 28. 1952 w 55 Sheets-Sheet 19 Connecfor Formi k 75778.5 Pa

Cadc Buses IN V EN TOR.

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